For my flood campaign I'm going to add some skirmish battles using a home brewed mod of SAGA. But since deadlands isn't a miniatures game, they don't give painting schemes for most of the troopers involved.

Each of the Rail Barrons has official colors, and their "house troops" would follow those. The colors can be determined by their corporate logos as found in the Marshal's Handbook. Of course, all of them hire freelance shooters, who are less uniform.

Ravenites are not a rail faction, they're "civilized" Indians planning to kill all non-Indians. No official colors, though tribal war paints would be appropriate for some of them. They're an odd mix of traditional trappings and formality - suits and feathers, an oxford tie under a ghost shirt, that sort of thing.

Good luck!_________________"Got a problem? I've got the solution: Rocket Launcher."
"Not against a Servitor."
"... We're all gonna die."